完成句子
由于学习的努力，他在考试中表现不错。
___________ hard working, he did well in the exam.
这些食物是如此的好吃，我吃了很多。
The food was ________ that I ate a lot.
他的头发比Sam的短。  He has _______ hair _____ Sam.
上星期我一点儿也不觉得累。  I _______ feel tired ________last week.
这些问题的答案非常容易。  The ____________ are very easy.